Dumping-body for vehicles.



D. W. CARR.

DUMPING BODY FOR VEHICLES.

APPLICATION FILED JAN. 4. 1909.

Patented Feb. 15, 1910.

5 SHEETS-SHEET 1.

311 we u ['01 after-new Witnesses @/Z@?%M D. W. CARR.

DUMPING BODY FOR VEHICLES.

APPLICATION FILED JANA, 1909.

Patented Feb. 15, 1910.

5 SHEETS-SHEET 2.

D. W. CARR.

DUMPING BODY FOR VEHICLES.

APPLICATION FILED JAN. 4 1909 94:9, 3 1 4. Patented Feb. 15, 1910.

5 SHEETS-SHEET 3.

qwvcmeooao D. W. CARR.

DUMPING BODY FOR VEHICLES.

APPLICATION FILED JAN.4.1909.

949,314. Patented Feb. 15, 1910. 5 SHEETS-SHEET 4.

Illlll/A D. W. CARR.

DUMPING BODY FOR VEHICLES.

APPLICATION FILED JAN. 4, 1909.

Patented Feb. 15, 1910.

5 SHEETS-SHEET 5 UNITED STATES PATENT OFFICE.

DOX W. CARE, OF GREELEY, COLORADO, ASSIG NOR TO THE GREELEY MANUFACTUBING COMPANY, OF GREELEY, COLORADO, A CORPORATION.

DUMPING-BODY FOR VEHICLES.

Specification of Letters Patent.

Application filed January 4, 1909. Serial No. 470,686.

To allwhom it may concern:

Be it known that I, Dox W. CARR, a citizen of the United States,residing at Greeley, county of \Veld, and State of Colorado,.haveinvented certain new and useful Improvements in Dun'iping-Bodies forVehicles; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same. reference being hadto the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification.

My invention relates to improvements in dumping bodies for vehicles, myobject being to provide a device of this class in which the dum ing boxor body is mounted to rock upon a frame, the frame and the body beingconnected by cables or other flexible devices which operate inharmonywith the rockin movement, as the body is tilted laterall y ineither direction.

For the purpose of actuating the dumping body, I provide the stationarframework of the vehicle with a centrally ocated longitudinally disposedshaft which is exposed at one extrennty of the vehicle, and providedwith a crank for operating purposes. This shaft is provided with a wormwhich ongages aworm wheel mounted upon a transversely arranged shafthaving cone-shaped drums which increase in diameter outwardly from theirinner extremities. Two cables are respectively connected with thesedrums at one extremity, while their opposite extremities are connectedwith the opposite sides of the dumping body at centrally located points.Inter-posed between the drums and the points for the attachment of thecables, are guide pulleys. By virtue of the conicity of the drums andthe arrangement of the cables thereon, both cables are held taut duringthe tilting of the body to the dumping position in either direction. Inother words, the cable which is connected with the side of the bodywhich moves upwardly during the tilting operation, winds from thesmallest diameter of the pulley to the largest, since the arc in whichthe risin side of the body. is traveling is continual y increasing;while the cable connected with the opposite side winds from the lamestdiameter of the pulley toward its sma lest diameter, since the are inwhich the downwardly moving side of the body is traveling is continuallydiminishing.

Having briefly outlined my im roved con struction, I will proceed todescri e the same in detail, reference being made to the accompanyingdrawing in which is illustrated an embodiment thereof.

In this drawing, Figure 1 is a side elevation of a vehicle equipped withmy improvements. Fig. 2 is an underneath view of the dumping body andthe framework with which it is connected. It may otherwise be termed abottom plan view of the same. F 3 is a top plan View of the dumping b yprovided with my improvements. Fig. 4 is a front end elevation of thedumping body and the framework upon which it is mounted, showing thesame detached from the vehicle. Fig. 5 is a detail view of the drumshaft with the worm wheel thereon, the worm for operating the shaftbeing also illustrated. This may be termed a view looking in thedirection of the arrow 5 Fig. 6. Fig. 6 is a section taken on the line6-6 Fig. 5, the worm Wheel, the worm shaft and worm being shown inelevation. Fig. 7 is a vertical section taken on the line 7--7 Fig. 1.Fig. 8 is a fragmentary detail view illustrating themeans for operatingthe dumping bed supports, which are arranged on opposite sides thereof.

The same reference characters indicate the same parts in all the views.

Let the numeral 5 designate the stationary framework of the vehicle bodywhich is provided with longitudinal side beams G and transverse bottombeams -7 which roject slightly above the side beams and orm a supportfor rockers 8 mounted upon the bottom of the dumping body 4. Theserockers with the exception of the center one are connected with theframework by cables 9. One extremity of each cable is connected with theframe work at one side, while its op posite extremity is connected withthe remote extremity of the rocker. B virtue of this arrangen'ient, thebody is f fee to tilt transversely in either direction.

The preferred manner of attaching the cables to the dumping body of theframework upon which it is mounted is illustrated in Fig. 4. Each cableis provided at one extremity with a stop or enlargement C adapted toengage a recess D formed in the upper side of the front and rear crossbeams E of Patented Feb. 15, 1910.

the dumping body. Below the recess D an opening F is formed extendingthrough the beam. The cable 9 is threaded through this opening F untilits enlarged extremity C enters the socket D and forms a stop to thefurther movement of the cable. The latter is then passed underneath therocker 8 in operative engagement with the same, and finally passeddownward through a vertical opening H formed in one extremity of the.bottom beam 7. The cable rotrudes beyond the bottom of this beamsufliciently to secure it by means of a nut J, or in any other suitablemanner. Attention is called to the fact that the bottom beams 7 locatedat the opposite ends of the framework 5, are interposed between the sidebeams 6, and are connected therewith by rods 22, which pass transverselythrough the beams 6 and longitudinally through the beams 7. In order tostrengthen the structure, plates L are interposed between the innersurfaces of the beams 6 and the opposite extremities of the beams 7.These plates are also provided with openingis through which the rods Kpassl .In or er to increase the strength afforded by the plates L, theirupper and lower extremities are bent at right angles to the body of theplate, as shown at M and N. This. rocker construction is substantiallysimilar to the construction shown in my previous application, Serial No.413,522, filed January 31, 1908, except that in my previous constructionflat metal straps were employed, while in my present construction cablesare used.

For the purpose of operating the dumping body or tilting it in the onedirection or the other, as may be desired, I employ a transverselylocated shaft 10 whose opposite extremities are provided withcone-shaped drums 12. Centrally located upon the shaft 10 and made fastthereto, is a worm wheel 13 which is engaged by a worm 14; mounted upona shaft 15 journaled in the framework 5 and provided at its outerextremity with a hand crank 16.

There are two operating cables 17. These cables are respectivelyconnected with the opposite sides of the dumping body, as shown at 18,their opposite extremities being respectively connected with the drums12. Intermediate these drums each cable engages a guide pulley 19, theseguide pulleys being mounted upon a transversely disposed beam Acentrally located upon the framework 5. The extremities of the beam Aproject beyond the side beam 6 on both sides of the framework of thebed, and are provided with extension brackets B in which are mountedpulleys 20, which are engaged by the cables 17. The object of the beamA,

and the extension brackets, is to bring the pulleys 20"into such aposition with reference to the points where the cables are at- 6 tachedto the dumping body, that the down eaaeia ward pull of the cables on thedumping body shall, as far as possible, be in a vertical directionduring the dumpin operation, in order to utilize the power app%ied fordump ing purposes to the best advantage. The pulleys 20 are engaged bythe cable 17 between the pulleys 19 and the points 18 where the cablesare attached to the dumping bed. \Vhen the dumping body is in thehorizontal position, its opposite sides are engaged by short bars 21which are pivotally connected with the rods 22, heretofore described.These supporting bars are also pivotally connected with longitudinallydisposed rods 23, the rear extremity of each of which is connected, bymeans of link R, with a lever 24 fulcrumed at 25. When it is desired todumpthe vehicle body in either direction, the lever which controls thebars 21 on the dumping side, is shifted to disengage the bars 21 fromthe vehicle body on that side (see Fig. 1).

The opposite sides 26 of the dumping body are hinged as shown at 27.Each of these sides is locked in the raised or closed position. bychains 28, which. engage the slotted extremities 29 of metal bars 30,which are attached to the outer surface of the sides'26. These chainsare of suiiicient length to support thesides 26 in any desired position,from the closed position illustrated in Fig. 4, to the dumping positionshown in Fig. 7 The slot in the extremity of each bar 30 is adapted toreceive any link of 'the chain which fits therein, the adjacent linkforming a stop to prevent the chain from slipping through the slot.\Vhcn the side 26 is in the position shown in Fig. 7 it'forms a chute orguide for the contents of the dumping body as they are discharged.

The drum should be inclosed by a, housing 33, which is preferablycomposed of two members respectively provided with rearwardly locatedflanges 34, which are secured to one of the bottom beams 7 of theframework by bolts 35. 4 These housing members are provided withapertured ears 36 connected by bolts 37.

In order that the ends 38 and 39 of the dumping body may be suflicientlysupported and reinforced when there is no load, inner verticallydisposed cleats 40 are applied to the sides 26 of the body, andwhen thelatter are in the closed or raised osition, they engage the said ends ofthe b0 y upon their inner surfaces.

From the foregoing description, the use and operation of my improveddumping mechanism will be readily understood. Assuming that the dumpingbody occupies the horizontal position, and that it is desired to dumpits contents, the supporting bars 21 i is then released from the plate30 on the dumping side. The hand crank 16 is then turned in the properdirection, whereby one of the cables 17 is unwound from its coneshapeddrum, while the other cable is wound thereon. By virtue of the peculiarshape of the drums, and the arrangement of the cables thereon, thecable-on the dumping side of the vehicle is wound more rapidly at thebeginning of the operation and gradually diminishes toward the close ofthe operation; while the cable upon the opposite side begins unwindingat a smaller diameter and unwinds toward the greatest diameter of thedrum, and thus gradually increases in speed as the body approaches thedumping I position.

It will be understood that during the tilting operation, the arc oftravel of the side of the vehicle body on the dumping side iscontinually diminishing, while the corresponding are on the oppositeside'is continually increasing. Hence, in order that both cables mayremain taut, it is important that the drums be shaped to harmonize withthe aforesaid conditions.

The cone-shaped drums 12 are spirally grooved, whereby the cable isprevented from slipping laterally thereon, or from a high to a lowpoint. This feature also makes it practicable to regulate the travel ofthe cables upon the drums, by varying the pitch of the spiral.

By referring to- Fig. 7 of the drawing it will be observed that thecentrally located bottom beam 7, upon which the correspondingly locatedrocker 8 of the dumping body rests, is not connected with the dumpingbody by means of cables 9 which en age the rockers 8, as is the casewith the en bottom beams 7.

Having thus described my invention, what I claim is:

1. In dumping mechanism for vehicles, the combination with a relativelystationary frame, of a dumping body mounted to rock thereon, cablesconnected with the body on opposite sides, and cone-shaped operatingdrums with which the op oslte extremities of the cables are connecte thesaid drums being constructed to cause the cable on the dumping side todiminish its speed of travel as the tilting of the dumping bodyincreases, while the cable on the opposite side simultaneously increasesits speed of travel, substantially as described.

2. The combination with a suitable stationary frame, of a dumping bodymounted to rock thereon, whereby the body may be tilted to the dumpingposition in either direction, flexible devices connected with theopposite sides of the vehicle'body, and coneshaped winding drums withwhich the flexible devices are also connected, the said drums beingconstructed to diminish the speed of travel of the flexible device onthe dumping side and increase the speed of travel of the flexible deviceon the opposite side, during the operation of tilting the vehicle bodyin either direction, substantially as described.

3. The combination with a suitable stationary framework, of a bodymounted to rock transversely thereon, for the purpose of tilting thebody to the dumping position in either direction, cables connected withthe opposite sides of the vehicle body, an operating shaft provided withdrums, the cables being respectively connected with the said drums, thelatter being cone-shaped, and the cables being so connected that the oneon the (lumping side diminishes its speed of travel during the tiltingoperation of the vehicle body, while the cable on the opposite sidesimultaneously increases its speed of travel, substantially asdescribed.

4. The combination with a relatively stationary frame, of a dumping bodymounted to rock transversely thereon, whereby the body may assume thedumping position in either direction, cables respectively connected atone extremity with the opposite sides of the vehicle body, and coneshaped winding drums with which the opposite extremities of the cablesare connected, the

said drums being constructed to actuate the cables to tilt the body tothe dumping position in either direction, both cables being kept tautduring the dumping operation, substantially as described.

5. In mechanism of the class described,

the combination with a relatively stationary frame work, of a bodymounted to rock thereon, whereby it may be transversely tilted to thedumping position in either direction, an operating shaft, cone-shapeddrums mounted on the shaft, cables connected with the oppositeextremities of the dumping body, the cables being also connected withthe said drums in such a manner that as the shaft is rotated to tilt thedumpin body, the cable on the dumping side wil diminish in s eed as theoperation proceeds, while the cab e on the opposite side willsimultaneously increase in speed, for the purpose set forth.

6. In mechanism of the class described, the combination with arelatively stationary frame work, of a dumping body whose bottom isprovided with rockers, the frame work havin transversely arrangedsupports for the roc ers, flexible devices connecting the rockers withthe frame work, an operating shaft provided with coneshaped drums, andcables connected with the said drums at one extremity and with theopposite sides of the dumping body at their opposite extremities, thecables being so connected with the drums that the speed of travel of theone on the dumping side gradually diminishes during the operation oftilting the bod while the cable on the opposite side gradua ly increasesin speed, during the same 0 eration, substantially as described.

7. T e combination with a suitable stationary framework, of a dumpingbody mounted to rock transversely thereon, cables connected with theopposite sides of the dumping body, an operating shaft provided withspirally grooved cone-shaped drums, the cables being respectivelyconnected with the said drums in such a manner that the cable on thedumping side diminishes its speed of travel during the tilting operationof the vehicle body while the cable on the opposite side simultaneouslyincreases its speed of travel.

8. The combination with a suitable stationary framework, of a bodymounted to rock transversely thereon for the purpose of tilting the bodyto the dumping position in either direction, cables connected with theopposite sides of the vehicle body, an oper ating shaft provided withspirally grooved cone-shaped drums,the cables being respectivelyconnected with the said drum in such a manner that the cable on thedumping side diminishes its speed of travel during the tilting operationof the vehicle body, While the cable on the opposite side simultaneouslyincreases its speed of travel, a transverse beam applied to thestationary part of the vehicle and projecting laterally beyond the sameon both sides, the outer extremities of the said beam being providedwith guide pulleys which are engaged by the cables intermediate thedumping body and steam hicle, the cables being respectively connectedwith the said drums in such a manner that the cable on the dumping sidediminishes its speed of travel during the tilting operation of thevehicle body while the cable on the opposite side simultaneouslyincreases its speed of travel, and guide pulleys suitably supported uponthe stationary part of the vehicle and engaged by the cablesintermediate the drums and the'dumping body, the said guide pulleysbeing so located that the cables, when the dumping body is in thehorizontal position, occupy'approximately a vertical position betweenthe dumping body and the guide pulleys, whereby the power employed fordumping purposes is utilized to the best advantage, substantially asdescribed.

In testimony whereof I aflix my signature in presence of two witnesses.

DOX W. CARR.

Witnesses:

A. J. OBBIEN, A. EBERT OBRIEN.

